1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
baherus [9]
3 years ago
6

What are some examples of chemical changes?

Chemistry
1 answer:
Oliga [24]3 years ago
6 0
Ice melting like with global warming
You might be interested in
Rate = K[A]
Aleks [24]

Answer:

9 × 10⁻³ mol·L⁻¹s⁻¹  

Explanation:

Data:

  k = 1 × 10⁻³ L·mol⁻¹s⁻¹

[A] = 3 mol·L⁻¹

Calculation:

rate = k[A]² = 1 × 10⁻³ L·mol⁻¹s⁻¹ × (3 mol·L⁻¹)² = 9 × 10⁻³ mol·L⁻¹s⁻¹

8 0
3 years ago
Cloudy nights can be warmer than clear nights because clouds trap heat
tigry1 [53]

Answer:

Cloudy nights can be warmer than clear nights because clouds trap heat absorbed by Earth during daylight hours.

4 0
3 years ago
Read 2 more answers
What is the atomic number of the yet-undiscovered element directly below francium ( Fr) in the periodic table?
kakasveta [241]
The atomic number of Francium is 87.
4 0
3 years ago
According to the big bang theory, which statement is accurate about how the universe came to be?
DIA [1.3K]

Answer:

The term Big Bang defines that the Universe has expanded from the ancient hot and thick primary situation at some fixed time in the past.

Big Bang theory refers to the origin of the Universe. In the beginning, universe is very heavy and small hot ball of matter. It was a point no bigger than the head of a pin when all the things squished with each other and universe is expanded with huge explosion of energy. Due to expansion, it is cooled and results in the formation of Stars and galaxies. After sometime, atoms formed like helium and hydrogen.

Thus, statement (1), (3) and (4) is correct whereas statement (2) and (5) is incorrect. the right answer is - (It expanded slowly), (Stars and galaxies formed,) (Atoms such as hydrogen and helium formed.)

Explanation:

8 0
2 years ago
Read 2 more answers
the smell spreads immediately after you burn agarbatti in this example what is your condition about intermolecular force
Sloan [31]
Intermolecular force for solids is high. Whereas low in gases. The smell of agarbatti spreads immediately because the molecules of air diffuses very fastly.
4 0
2 years ago
Read 2 more answers
Other questions:
  • Which three quantum numbers are associated with the 4d orbital?
    5·1 answer
  • the grams of carbohydrate in one apple if the apple has no fat and no protein and provides 72 kcal of energy
    8·1 answer
  • which orbital is the first to fill with electrons in a given principal with electrons in a given principal energy level
    11·1 answer
  • The density of iron is 7.8 g/cm^3 (cubed), what is the mass of 5 cm^3 (cubed) of it? Include the symbol for the correct unit.
    9·1 answer
  • The balanced chemical equation for the reaction between PCl5 and water is given below. If 3.45 moles of HCl are produced, how ma
    8·1 answer
  • What is the molar mass of Al2(SO4)3
    5·2 answers
  • he atomic number of fluorine is 9. How many electrons does an ion of fluorine have if it is represented by the symbol shown belo
    11·2 answers
  • Determina a quantidade da agua produzida quando 20 gramas de H2 reage com 8 gramas de O2? a) Indique o reagente limitante ? b) D
    12·1 answer
  • Directions: Show all of your work for each of the following problems.
    9·1 answer
  • A rock that weighs 12.2 g is added to a graduated cylinder with 30.0 mL of water in it. The meniscus rises to 54.4 mL. What is t
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!